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Toxic interactions among Pb, Zn, and Cd with varying levels of dietary Ca and vitamin D: hematological system

Journal Article · · Environ. Res.; (United States)
Rats were fed lead (0.5 percent), zinc (0.63 percent), cadmium (90 ppM), and control diets individually and in combinations with each other. These diets were fed for 42 days with two levels of calcium (0.1 and 0.9 percent) and three levels of vitamin D (0, 2000, and 50,000 IU/kg of feed). The most significant findings were: a more severe anemia when zinc and cadmium were fed together than when fed individually; a marked reduction of a lead-induced reticulocytosis when toxic zinc or cadmium diets were fed; a reduction of urine delta-aminolevulinic acid levels by the administration of excess zinc to lead-fed rats, or when excess cadmium was fed in low vitamin D diets; and the low serum iron levels of zinc toxicity were further reduced by low calcium or high vitamin D diets.
Research Organization:
Univ. of Guelph, Ont.
OSTI ID:
5204472
Journal Information:
Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 14:3; ISSN ENVRA
Country of Publication:
United States
Language:
English